Shock absorbing and snubbing device



May 11 1926.

R "r A BURKE Y i SHOCK ABSORBING AND $NUBBING DEVICE Filed June 2 1.924 :5 Sheets-5heet 1 jwvwnfo'y TA-BZZIK May 11 192s. 1,584,211

R. T. A. BURKE SHOCK ABS OHBING AND SNUBBING DEVICE Filed June 2, 1924 3 Sheets-Shec 2 f I 7 I I ;4 |a 7 v jwuaw ioz $W; Y R ZfiQlZZZIiBll/i LIA 61mm, v v I R. T. A BURKE SHOCK ABSORBING AND SNUBBING DEVICE 3 Sheetsmwneet 3 Filed" June 1924 an um 01 7-14. 501%? Ill) Patented May 11, 1926.

UNITED s'ra'r RICHARD T. A. BURKE,

OF BRIDGE/EON, NEW JERSEY.

SHOCK ABSORBING AND SNUBBING DEVICE.

Application filed June 2,

My invention relates to shock absorbing and snubbing devices adapted for use on automobiles.

Automobiles are provided with springs of sufficient stiffness to withstand heavy shot-i s. Light shocks are not absorbed by these Still springs, but are transmitted to the body oi the automobile, and the rebound caused by heavy shocks is of such magnitude that the body is thrown upward. This stiff charaeteristic of springs is well recognized as detrimental to comfortable riding.

With the motor running vibratory motion is imparted to the body of the car whether the car is occupied or unoccupied. 'lhese vibrations cause continuous vibration or oscillation of. the wheel. This vibration of the wheel is exceedingly tiresome to the driverof the car and the vibratiorrot the body, and especially of the floor, is tircsoine not only to the driver but to other occupants of the car. in addition to the vibratory movement, car bodies, especially in cars of the type in which the springs are in line with the axle, are liable to heavy sidcwise sways such as occur when rounding a curve, and the springs often break. 7

in some c the connection between the axle and the hassis is too 'csilient vertically and in otlfer scs it is too resilient laterally.

The objects of my inv ntion are to provide means for ronnectint toe chassis with the axle which will not only eliminate the ob jcctionalile vibrations; but will absorb to the maxinuun both heavy and light shocks, and rr urc lo wise sways lo the minimum, and upich i 1y be readily applied to the types of? automobiles now in use.

'lhese obiecls, and other advantageous ends which will be described hereinafter, I" attain in the following; manner, reference being had lo the accompanying drawings in which l ig'urel is :1 fr Inu-ul'ary front elevation of an automobile having my invention applied llicrclo,

Figure "5 an enlarged frae nu-ninry section on line 2--. of Figure 1 Figure an enlarged fragmentary section on line 3-4) of Figure l,

tion,

1924. Serial No. 717,239.

Figure 4t an enlarged section on line 4---& of Figure 2,

Figure 5 an enlarged section on line 5'-5 ofl igure 3,

Figure (3 an enlarged section on line 6--6 B5 of Figure 3,

.l igure 7 a view similar to -Figure t3 illustrating the parts moved into another posi- Figure 8 a fragmentary section oi Figure 6 (3 illustrating a modified form, and

Figure 9 a fragmentary section similar to Figure 8 illustrating another form.

Referring to the drawings, 1 indicates the axle of an automobile 2 the chassis, 3 the spring connecting the axle with the chassis and 4 the fender supporting rod secured tothe chassis. My shock absorbing and snubbinp; devicefi is connected with the chassis and the anle and retards any considerable 70 movement in any direction, ofthe chassis relatively to the axle, but has little effect upon slight movement. In the present instance, 1 have shown'the device 5 connected with the axle through the perch 6, and to the chassis through the fender supporting rod 4. Device 5 has a cylindrical casing made in sections 7 and 8 which are adjustable lengthwise. Yoke arms 9 and 10 are secured'to the sections by a pair oi guide bolts '11 ex e0 ttll'fllil'lg from one section to the other. These yoke arms are pivoted at 12 to ereh 6 in any suitable manner. A pair 0 compressing plates 13 are slidably n'iounted on the guides to move lengthwise ot' the cylindrical casing. 55 vhesilient disks 14, preferably of rubber, are placed between each plate 13 and each end of. the cylindrical casing. Plates 13 are adapted to compress resilient disks 14:, when retarding the movement of the chassis relatively to the axle. l laeh plate 13 is. provided with an area-ate inclined camming face 15 having its lowest point at '16 and its highest point at 17. A shaft 18 is secured to the casing preferably by passing its ends, lhrough each section and each of the yoke arms 5) and i0, and fastening theshaft time to by nuts or otherwise. The shaft is disposed com-vntrirally to the arcuate inclined faces 35. An arm 19 ispivoted adjacent one of its ends on the shaft and has its other end. pivoted at 20 to a U-sha ed bracket 21 fixed to fender support 4. rm 19 is dis posed between the camining faces and when swung in either direction, functions with the inclined camming faces 15 to separate the plates 13 and compress the resilient disks 14 moved between the inclined faces by the swinging movement of arm 19, they roll on the inclined faces andl on each other and force plates 13 at'right angles t the swinging dire tion of the arm to compi e In Figure 8, I have shown a modified form'of anti-friction means for arm'lf) honsisting of an arm 26 having an aperture 27 in which a pair of balls 28 are disposed.

These balls roll oneach other and on races '29 which are inclined to' correspond with the inclination of camming faces 15.

In Figure 9, I have shown another form in which an arm 30 corresponding to arm 19 directly engages inclined faces 31 which correspond to the faces 15. In this form the anti-friction means are eliminated.

In use, when the'axle is moved by a shock relatively to the chassis in any direction, for example in the downward direction as shown in dot-and-dash lines at 32, arm 19 will be moved relatively to yoke arms Q'and 10 as shown in dot-and-dash lines at 33. If the chassis is moved upwardly the arm will move upwardly as shown in Figure 7. If the chassis is moved sidewise in either direction the arm will move either upwardly or downwardly In any case a movement of the chassis relativelyto the axle will move arm 19 relatively to yoke-arms 9 and 10.

Such movement of armlfi causes rollers 22 to ride between the inclined faces 15 from the low point '16 toward the highpoint 17. This action forces plates '18 against resilient disks 14 to compress them; The compress ing action retards the movement of arm 1.) and the chassis to which the arm is pivoted. After the movemen't of the chassis is rctarded and the-arm moved toits normal position, resilient disks '14: will expand and move compressing plates 13 to their normal position as shown in'Figurc 6.

When arm 19 is ad'acent low points 16 on the inclined (ramming faces. a. slight movement of the arm is practically unaffected by the inclined faces 15." Lightshocks which move arm 19 slightly are practically absorbed by the light resilient spring, while ss disks 14..

the heavy shocks which move arm 19 to a greater extent are absorbed by the compressing action of disks 14, thereby preventing breakage of the spring and yet permitting the use of a light resilient spring such as is,

required for easy and comfortable riding.

lVith this device applied'to a car there is no perceptible vibration of either steering wheel or floor when the car is on the road. \Vhile I have described my in ention as taking a particular form, it will be understood that the various parts-may he, changed without departing from the spirit thereof, and hence I do not limit myself to the precise constru tion set forth, but consider that I am at liberty to make suchchanges and alterations as fairly come within the scope of the appended claims. 7 Having thus described my invention, what I "claim as new and desire to secure by Letters Patent is 1. In combination with the axle and chassis of a vehicle; a casing. connected 'with the axle; compressingmembers movable in the casing; resilieiit 'mean's I between each compressingmcmher and the casing, andmow able means, between the compressing members, connected with the chassis and adapted to move the members against the action of the resilient means as the chassis moves relatively to the axle.

2. In combination with the axle and chassis of a vehicle, a. casing connected with the axle: compressing members movable in the casing; resilient means between each comlot ressin member and the casin and anti-' friction movable means, between the compressing members, connected with the chassis and adapted to move the members against the action of the resilient means as the chassis moves relatively to the axle.-

3. In combination with the axle and chassis of a vehicle, a casing connected with the axle; compres'singmembers movable in the casing; resilient means between each com pressing member and the casing; an arm pivoted in the casing between the compress ing members andconnected with the'chassis, and means carried by the arm adapted to movethe compressingmembers against the action of the resilient means as the chassis moves relatively to the axle.

4. In combination with the axle and chassis of a vehicle. a casing connected with the axle; compressing members movable in the casing; resilient means between each compressing member and the casing: an arm pivoted in the casing and connected with the chassis, and rolling members, carried by the arm engaging thc'compressing members an adapted tojmove them against the action of the resilient means as the chassis moves relatively to the axle.

5. In combination with the axle and chas sis ofa vehicle, a casing connected with the iii all

axle; compressingmembers movable in the casing; resilient disks between each com.- p cssing member and the casing; a saait sec. to the casing'and connecting the disks and the compressing members; an arm pivo' liers movable in the casing; resilient means between the compressing inez'l'il'iers and the casing; arms pivot-ally connecting the cos ing with an axle perch; a pivot shaft in the casing connecting the resilient means and the compressing members; an arm pivoted to the shaft between the compressing. ]'llll'll')(.i$, and pivotally connected with the chassis, and means carried by the arm adapted to engage the compressing members and move them against the resistance of the resilient means as the chassis moves relatively to the axle.

7. In combination with the axle and chassis of a vehicle, a casing; con'ipre sing members movable in the casing; resilient means between the compressing members and the casing; arms pivotally connecting the casing with an axle perch; a pivot shaft in the easing ct -acting the resilient means ainrl the compre members; an arm pivoted to the shaft between the compressing members, and pivotally connected with the chassis, and anti-frietion means carried by the arm adapted to engage the compressing members and move them against the resistance of the resilient means as the chassis moves relatively to the axle.

8. In combination with the axle and chassis of a vehicle, a casing connected with the axle; guides secured in the casino: (,OH'JPIQSFiing members movable on the guides; resilient means between the compressing member and. the casing, and movable means betw en the compressing members, connected with the chassis and adapted to more the i'iicmbers against the action of the resilient means as the chassis moves relativelv to the axle.

9. In combination with the axle and chassis of a vehicle. a casing connected with the axle; compressing members movable in the casing and having opposed inclined faces, and movable means, between the compress in; members, connected with the chassis and adapted to engage the inclined faces and move the members against the action of the resilient means the chassis moves relatively to the axle.

10: In combination with the axle and chassis of a vehicle. a casing connected with the axle: compressing members movable in the casing and having opposed arcuate inclined faces; an arm pivoted between the. faces and connected with the chassis, and anti-friction means, carried by the arm, engaging the inclined "faces and adapted to move the coinpressingg' members against the action of the resilient means as the chassis moves rela- 7 tively to the axle.

ll. lri oon'iliination' with the axle and chasof a vehicle, a casingconnected with the axle; giiitles, :ured in the casing; compressing members slitlable on the guides; resilient means between each compressingmember and the casing; a shaft secured to the casing; an arm pivoted on the shaft between the compressing members and connected with the chassis, and anti-friction means, carried by 59 the arm, engaging the compressing members and adapted to move thein against the action of the resilient means as the chassis moves relatively to the axle.

12. In combination with the axle and S5 chassis ot' a vehicle, a casing connected with the axle; compres. ng plates movable in the casing; resilient disks between each plate and the casing, and movable means, between the plates, connected with the chassis and adapted to move the plates against the action of the disks as the chassis moves relatively to the axle.

13. In con'ibination with the axle and chass V the axle; com 'iressing plates movable in the casing; rubber disks between each plate and the casing, and movable means, between the plates, coimected with the chassis and adapted to move the plates against the action of the disks as the chassis moves relatively to the axle.

14-. In combination with the axle and chassis ot a vehicle, a cylindrical casing connected with the axle; guides mounted in the casing lengthwise thereof; compressing plates slidable on the guides; resilient disks between each guide and the end of the easing; a shaft fixed to the casing lengthwise thereof; an arm pivoted on the shaft and pivotally cinnectedwitli the chassis, and antidriction means on the arm, at opposite sides of the shaft. engaging the plates and adapted to move them a ain t the action of the disks the char notes relatively to the axle.

15. In COllll')lllltlOil with the axle and chassis ot a vehicle, a sectional casing connected with the axle and adjustable lengthwise: guides secured to the casing to'pcrmit adjma nient thereot: comprem. no plates slirlable on the guid s: resilient disks between ea li-plate and each end of the casting; a shaft secured lengthwise ol' the casing: an arm pivoted on the shaft between the plates and connected with the cl'iassis, and means carried by the arm, engaging the plates and adapted to move them agai the action of the disl; as the chassis n'ioves relatively to the axle.

16.111 combination with the axle and chassis of a vehicle, a casing connected with the axle; guides secured within the casing; compressing plates slidahle 0n the guides and having m'cua'te inclined faces; a shaft etween the faces and connected with the chassis, and anti-friction means on the arm at opposite sides of the shaft, engaging 10 the faces and adapted to move the Iates against the action of the disks as the c assis moves relatively to the axle. In testimony whereof I have signed my name to this s ecificati'on.

ICHARD T. A. BURKE. 

